Don't get too excited when #5 comes out, as a careful read of the release notes reveals an appending update;

"Extra Note- We are aware of an issue with community created maps that results in a crash when someone without the map tries to join the game. This crash will be fixed in the next patch- Further work is being done on improving AI Naval invasion behaviour and this will be included in the next upgrade patch"

These don't seem to be big fixes, so I'm sure yet another update will be release within the next week or so to address these, and thus, another requirement for a trainer to reflect these changes.